1968 Porsche 912

The year after production of the legendary 911 had commenced in 1964, Porsche introduced the similarly bodied 912 as an entry-level model to the prestigious German marque. As such, it shared its monocoque steel chassis with that of the 911, together with independent front torsion bar and trailing arm rear suspension with all-around disc brakes. At the 912’s heart, however, was a 1582-cc flat four-cylinder engine—rather than the 911’s 1991-cc six-cylinder unit—that had last seen service in the final 356 model that the 911 had effectively replaced. Although the 912’s performance was naturally not as rapid as that of its larger-engined stablemate, its 90 bhp at 5,880 rpm, allied to 90 1b.-ft. at 3,500 rpm, was nonetheless sufficient to provide respectable 0-60 mph acceleration in 11.9 seconds and an impressive top speed of 121mph.

Changes during the 912’s four-year production life were minimal, the most notable being a power output increase in 1966 to...